| spiteful(adjective, irritable) |
| splenetic(tough, harsh, speech, awkward, unfriendly) |
| sulfurous |
| sulphurous |
| surly(adjective, tough, harsh, awkward, irritable) |
| tangy(adjective, strong, taste, sharp, powerful) |
| vinegary(adjective, sharp, harsh, unpleasant, bitter) |
| Elvis |
| LSD(noun, drug, dot, candy, shaker) |
| acidity |
| acute(adjective, strong, severe, sharp, intense) |
| back breaker(noun, expression, idiom) |
| barbed(adjective, strong, sharp, nasty, powerful) |
| battery-acid |
| bearish(adjective, irritable) |
| crabby(adjective, speech, unfriendly, irritable, bitter) |
| cranky(adjective, speech, unfriendly, irritable, bitter) |
| critical(adjective, severe, sharp, bitter, unkind) |
| cross(adjective, speech, unfriendly, irritable, bitter) |
| grouchy(adjective, grumpy, bad-tempered, tetchy) |